Coreid Bug vs Japanese Giant Water Bug

Side-by-side species comparison

Attribute Coreid Bug Japanese Giant Water Bug
Scientific Name Thasus neocalifornicus Lethocerus deyrolli
Order Hemiptera Hemiptera
Family Coreidae Belostomatidae
Size 30-40 mm 48-65 mm
Habitat Heathland Ponds & Lakes
Diet Seed Feeders Predators
Regions North America East Asia, Japan
Conservation Least Concern Vulnerable

Coreid Bug

One of the largest leaf-footed bugs in North America with vivid nymph coloration.

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Did You Know?

Nymphs are brilliant metallic blue and red before turning drab brown as adults.

Japanese Giant Water Bug

Known as 'ta-garame' in Japanese, this is one of Japan's largest aquatic insects. A fearsome ambush predator that can catch small fish and frogs. Has declined dramatically due to habitat loss.

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Did You Know?

Males of this species guard the eggs, which the female glues to emergent vegetation above water, by periodically climbing up to moisten them.